import React from 'react'
import './A.css'
import About from './D'
// const About = lazy(() => import('./B'));


export default (props) => {
  console.log(props)
  return (
    <div>
      <button onClick={() => { props.history.goForward() }} >click me</button> <br />
      <h1>this is A</h1>
      <About />
    </div>
  );
}
